fluorescent

definition: emitting light during exposure to radiation from an external source
example:
speech part: adjective
synonyms:
definition: brilliantly colored and apparently giving off light
example: fluorescent colors
speech part: adjective
synonyms:
definition: a lighting fixture that uses a fluorescent lamp
example:
speech part: noun
synonyms: fluorescent fixture

fluorescent is explained and pronounced

How fluorescent is being used?